HI, the background is a quarry (rock face) and when the light is just peeping through late evening it produces a almost bright yellow glow that basically overtakes the image,i have some images were it works but it just as to be a bit later in the evening
Good call desaturating the BG, it looks tastefully tamed here. Good perch and I like the way the owl is clinging to it. A bit of a cyan cast to the owl's plumage and the perch, an easy fix by adding a bit of red to the colour balance, but all else looks good to me.